Stamen Grigorov is the Bulgarian doctor and scientist who discovered Lactobacillus bulgaricus, a type of bacterium used to make yogurt. Grigorov is celebrated in the October 27 Google Doodle.

Lactobacillus Bulgaricus- The Magic Bulgarian Bacillus People | April 21, 2004, Wednesday // 00:00 Send to Kindle ...

Alexander Alfred Day, William Merriott Gibbs, Surface Tension in Relation to Bacterial Growth: With Special Reference to Lactobacillus Acidophilus and Lactobacillus Bulgaricus, The Journal of ...

Puratos' sourdough ambassador for the world Morgan Clementson shares her memories from Bulgaria, the special Lactobacillus Bulgaricus, and about her passion for baking bread with her specially ...